The voltage at which a CR2032 battery is considered dead or depleted can vary slightly depending on the specific application
and the criteria used for defining "dead." However, in general, a CR2032 coin cell battery is considered to be at the end of its
useful life when its voltage drops below approximately 2.0 to 2.2 volts.
Here are some voltage levels commonly associated with a CR2032 battery in different states:
Fresh or Fully Charged: A new or fully charged CR2032 battery typically has a voltage ranging from about 3.0 to 3.3 volts.
Usable Voltage Range: Most devices using CR2032 batteries can operate within a voltage range of 3.0 to 2.0 volts. As the voltage
decreases within this range, the battery's capacity diminishes, and its ability to power devices may be affected.
Considered Dead: Once the voltage drops below approximately 2.0 to 2.2 volts, the CR2032 battery is often considered to be
dead or depleted. At this point, it may no longer provide sufficient power to operate electronic devices effectively.
It's important to note that different devices may have different voltage cutoff levels for considering a CR2032 battery dead.
Some devices may continue to function with lower voltage levels, albeit at reduced performance.
To check the voltage of a CR2032 battery, you can use a multimeter set to the DC voltage setting. Place the multimeter probes
on the positive (+) and negative (-) terminals of the battery, and the multimeter will display the voltage. If the voltage is
significantly below the usable range or the device is not operating correctly, it's a good indication that the battery may be
approaching the end of its life.
Always follow proper safety precautions when handling batteries, and dispose of depleted batteries in accordance with local
regulations.